Why is Nokia phone requesting a PIN/PIN2/PUK/PUK2 code?

How Do This:

When Your Nokia device requests PIN (Personal Identification Number) and PUK (Personal Unblocking Key) codes to protect your SIM card and device against unauthorized use. Note that all PIN and PUK codes are provided by your Network operator. Nokia is not able to provide you PIN or PUK codes.

Please note the following:

When you insert your SIM card and boot up your device for the first time, you need to enter the PIN code. For security reasons it is recommended to change it to your own code, instructions on how to change the PIN code in your device is provided in the user guide or Nokia web site. If the PIN code is entered incorrectly multiple times, your device may request a PUK code to further validate the user's identity and to unlock and change the blocked PIN code.

The PIN2 code is a PIN code which acts as a second layer of protection for certain features of your phone. If the PIN2 code is entered incorrectly multiple times, your phone may request a PUK2 code.

If you have forgotten or simply do not know the codes, you must contact your Network Operator for assistance. However, if you have already contacted but the code does not work, you should consider getting a new SIM card from your Network Operator.